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black snakeroot

noun
  1. a tall bugbane, Cimicifuga racemosa, of the buttercup family, of eastern North America, having thin, tapering, toothed or deeply cut leaflets and branched clusters of small, white flowers.
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Origin of black snakeroot

An Americanism dating back to 1690–1700
Also called black cohosh.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018